The reprint title Marvel Tales starting throwing a number of popular artists on the cover pages. One of them was Todd McFarlane, who drew some outstanding covers of Spider-Man teaming up with the X-Men.
Marvel Tales #233, this cover is my favorite out of this batch. The X-Men are in their classic yellow and blue uniforms, Beast is large and chunky in the foreground, Cyclops looks all repressed and Jean Grey (Marvel Girl) is absolutely ravishing with her red hair spilling out of her mask.
Original art to Marvel Tales #233, currently on sale at Heritage Comics auction site. This will be an expensive purchase! I think the auction closes in Feb 2013.
Marvel Tales #235, featuring the all new X-Men charging alongisde Spidey. Wolverine and Colossus get the big foreground push here. I wish Phoenix was upfront so we could have seen how McFarlane would have drawn that costume.
Original art to #235, this sold for over $56K on Heritage, wowza! You have to admire the detailed line work in this piece.
Marvel Tales #236 features a classic McFarlane Spidey pose and Storm looks great in her original costume. No original art for this one, I would love to see that one day. Nuff Said!